40479943 has 8 divisors (see below), whose sum is σ = 46740512. Its totient is φ = 34338816.

The previous prime is 40479913. The next prime is 40479947. The reversal of 40479943 is 34997404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40479943 - 2¹³ = 40471751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40479896 and 40479905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40479947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29130 + ... + 30487.

It is an arithmetic number, because the mean of its divisors is an integer number (5842564).

Almost surely, 2^40479943 is an apocalyptic number.

40479943 is a deficient number, since it is larger than the sum of its proper divisors (6260569).

40479943 is an equidigital number, since it uses as much as digits as its factorization.

40479943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59721.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 40479943 is about 6362.3850087840. The cubic root of 40479943 is about 343.3575731988.

The spelling of 40479943 in words is "forty million, four hundred seventy-nine thousand, nine hundred forty-three".